pystac-ext-item-assets
Item Assets extension for PySTAC
Decision gist · record as of 2026-08-14
Yes, if you are building or consuming STAC collections and need to declare shared asset properties across items. The extension is actively maintained, has no known vulnerabilities, and integrates cleanly with PySTAC. Install it only if your use case requires the Item Assets Definition Extension; base PySTAC may be sufficient for simpler catalogs.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later; pystac-core must be installed as a runtime dependency.
- Low friction install with a single runtime dependency (pystac-core).
- Active maintenance with recent release (4 days old) and no known vulnerabilities.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows free use, modification, and distribution with minimal restrictions—suitable for most commercial and open-source projects.
last release 2026-08-10 (4 days) · last repo commit 2026-08-10 · 454 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,981,864 downloads/mo, #2,415 on PyPI
Alternatives
Verify before relying
pip install pystac-ext-item-assets
from pystac_ext_item_assets import ItemAssetsExtension
# Use with a PySTAC collection to define shared asset properties
extension = ItemAssetsExtension.from_collection(collection)- Whether this extension is required for your use case or if base PySTAC handles your asset-definition needs.
- Compatibility with specific versions of pystac-core beyond the dependency declaration.
What it is and what it does
This package is a PySTAC extension that implements the Item Assets Definition Extension specification (v1.0.0). It allows STAC collections to declare common asset properties—such as media type, title, or description—that apply across all items in the collection, rather than repeating those properties on every individual item. This reduces redundancy and provides a clear template for what assets consumers should expect to find.
You use it by importing the extension and applying it to a PySTAC collection object. The extension is lightweight, depending only on pystac-core, and is maintained actively. It targets modern Python versions (3.10+) and carries no known security issues.
Use it for
- Define asset schemas for satellite imagery collections where all items share the same band structure and metadata.
- Standardize asset properties across a large catalog to reduce duplication and improve consistency.
- Publish STAC collections that conform to the Item Assets Definition Extension specification.
- Template asset definitions for multi-item collections with predictable asset structures.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building or consuming STAC collections and need to declare shared asset properties across items.
The extension is actively maintained, has no known vulnerabilities, and integrates cleanly with PySTAC. Install it only if your use case requires the Item Assets Definition Extension; base PySTAC may be sufficient for simpler catalogs.
Install
pystac-ext-item-assets on PyPI
Before you install
Low friction install with a single runtime dependency (pystac-core). Active maintenance with recent release (4 days old) and no known vulnerabilities.
Requires Python 3.10 or later; pystac-core must be installed as a runtime dependency.
License in practice
Apache-2.0 permissive license allows free use, modification, and distribution with minimal restrictions—suitable for most commercial and open-source projects.
Quickstart
pip install pystac-ext-item-assets
from pystac_ext_item_assets import ItemAssetsExtension
# Use with a PySTAC collection to define shared asset properties
extension = ItemAssetsExtension.from_collection(collection)Verify before relying
- Whether this extension is required for your use case or if base PySTAC handles your asset-definition needs.
- Compatibility with specific versions of pystac-core beyond the dependency declaration.
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagepystac-core |
| Maintenance | Actively maintained 4 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,981,864 / month, #2,415 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseNatural Language :: EnglishProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13 |
Evidence: pystac_ext_item_assets-1.0.1-py3-none-any.whl
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See also pystac-ext-xarray-assets · pystac-ext-storage · pystac-ext-file · pystac-ext-version · pystac-ext-table · pystac-ext-scientific · pystac-ext-raster · pystac-ext-pointcloud · pystac-ext-render · pystac-ext-label